package com.lyc.iotdb.common.iot;

import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Data;
import lombok.NoArgsConstructor;

import java.io.Serializable;
import java.util.List;

/**
 * Iotdb 分页数据工具
 *
 * @author kisang
 * @version 1.0
 * @date 2023/11/22 13:55
 */
@Data
@Builder
@AllArgsConstructor
@NoArgsConstructor
public class IotdbPage implements Serializable {
    private static final long serialVersionUID = 1L;
    // 总记录数
    private int totalCount;
    // 每页记录数
    private long pageSize;
    // 总页数
    private long totalPage;
    // 当前页数
    private long currPage;
    // 列表数据
    private List<?> list;

    /**
     * 分页
     *
     * @param list       列表数据
     * @param totalCount 总记录数
     * @param pageSize   每页记录数
     * @param currPage   当前页数
     */
    public IotdbPage(List<?> list, int totalCount, int pageSize, int currPage) {
        this.list = list;
        this.totalCount = totalCount;
        this.pageSize = pageSize;
        this.currPage = currPage;
        this.totalPage = (int) Math.ceil((double) totalCount / pageSize);
    }
}
